Pterygota - Definition and Overview

&nbsp&nbsp&nbsp Palaeodictyoptera - extinct
&nbsp&nbsp&nbsp Ephemeroptera (mayflies)
&nbsp&nbsp&nbsp Odonata (dragonflies and damselflies)
&nbsp Infraclass Neoptera
&nbsp&nbsp&nbsp Blattodea (cockroaches)
&nbsp&nbsp&nbsp Mantodea (mantids)
&nbsp&nbsp&nbsp Isoptera (termites)
&nbsp&nbsp&nbsp Zoraptera
&nbsp&nbsp&nbsp Grylloblattodea (rock crawlers)
&nbsp&nbsp&nbsp Dermaptera (earwigs)
&nbsp&nbsp&nbsp Plecoptera (stoneflies)
&nbsp&nbsp&nbsp Orthoptera (grasshoppers, crickets, katydids)
&nbsp&nbsp&nbsp Phasmatodea (walking sticks, timemas)
&nbsp&nbsp&nbsp Embioptera (webspinners)
&nbsp&nbsp&nbsp Mantophasmatodea (gladiators)
&nbsp&nbsp Superorder Hemipterodea
&nbsp&nbsp&nbsp Psocoptera (booklice, barklice)
&nbsp&nbsp&nbsp Phthiraptera (lice)
&nbsp&nbsp&nbsp Hemiptera (true bugs)
&nbsp&nbsp&nbsp Thysanoptera (thrips)
&nbsp&nbsp Superorder Endopterygota
&nbsp&nbsp&nbsp Miomoptera - extinct
&nbsp&nbsp&nbsp Megaloptera (alderflies, etc.)
&nbsp&nbsp&nbsp Raphidioptera (snakeflies)
&nbsp&nbsp&nbsp Neuroptera (net-veined insects)
&nbsp&nbsp&nbsp Coleoptera (beetles)
&nbsp&nbsp&nbsp Strepsiptera (twisted-winged parasites)
&nbsp&nbsp&nbsp Mecoptera (scorpionflies, etc.)
&nbsp&nbsp&nbsp Siphonaptera (fleas)
&nbsp&nbsp&nbsp Protodiptera extinct
&nbsp&nbsp&nbsp Diptera (true flies)
&nbsp&nbsp&nbsp Trichoptera (caddisflies)
&nbsp&nbsp&nbsp Lepidoptera (butterflies, moths)
&nbsp&nbsp&nbsp Hymenoptera (ants, bees, wasps, etc.)